$749+ Cheap flights from Porto Alegre (POA) to Seattle (SEA)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/15. Fares are subject to change and may not be available on all flights or dates of travel.
POA — SEA
Dec 9 — Dec 161
Round-trip
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Porto Alegre to Seattle
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One-way
Cheapest flights from Porto Alegre to SeattleExplore the most affordable flight options available from Porto Alegre to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 9, 2026.
Explore the most affordable flight options available from Porto Alegre to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 9, 2026.
This VIAZA deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure VIAZA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/245:20 am -
3 stops23h 35m
Fri 1/88:00 am -
2 stops27h 50m
Deal found 11/5![LATAM Airlines logo]()
$1,113
This Delta deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:30 am -
2 stops21h 35m
Sat 2/2010:35 pm -
2 stops27h 05m
Deal found 11/8![Delta logo]()
$1,157
This LATAM Airlines deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/35:15 am -
2 stops21h 27m
Sat 2/208:00 am -
2 stops21h 00m
Deal found 11/6![LATAM Airlines logo]()
$1,170
This LATAM Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/251:05 pm -
2 stops30h 14m
Tue 1/511:10 pm -
2 stops32h 05m
Deal found 11/5![LATAM Airlines logo]()
$1,209
This LATAM Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/251:05 pm -
2 stops30h 14m
Wed 1/611:10 pm -
2 stops31h 50m
Deal found 11/5![LATAM Airlines logo]()
$1,214
This LATAM Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2512:40 pm -
2 stops30h 39m
Sun 1/1011:45 am -
2 stops24h 05m
Deal found 11/5![LATAM Airlines logo]()
$1,220
This Copa Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/231:35 am -
2 stops26h 43m
Fri 1/87:28 pm -
2 stops24h 07m
Deal found 11/5![Copa Airlines logo]()
$1,342
This LATAM Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/235:40 pm -
2 stops27h 08m
Tue 1/511:10 pm -
2 stops32h 05m
Deal found 11/5![LATAM Airlines logo]()
$1,385
This LATAM Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/235:40 pm -
2 stops27h 08m
Wed 1/611:10 pm -
2 stops31h 50m
Deal found 11/5![LATAM Airlines logo]()
$1,390
Best flights from Porto Alegre to SeattleDiscover carefully curated flight deals from Porto Alegre to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 9, 2026.
Discover carefully curated flight deals from Porto Alegre to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 9, 2026.
This GOL deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure GOL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/76:05 am -
2 stops34h 25m
Wed 2/2410:23 am -
2 stops23h 12m
Deal found 11/8![GOL logo]()
$1,135
This Delta deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:30 am -
2 stops21h 35m
Sat 2/2010:35 pm -
2 stops27h 05m
Deal found 11/7![Delta logo]()
$1,158
This LATAM Airlines deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/257:30 am -
2 stops31h 45m
Mon 3/16:10 am -
2 stops19h 30m
Deal found 11/7![LATAM Airlines logo]()
$1,181
This GOL deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure GOL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/95:45 am -
2 stops34h 45m
Wed 2/2410:23 am -
2 stops23h 12m
Deal found 11/8![GOL logo]()
$1,135
This Delta deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/67:30 am -
2 stops34h 28m
Thu 6/109:25 pm -
2 stops29h 15m
Deal found 11/4![Delta logo]()
$1,177
This Delta deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/67:30 am -
2 stops30h 56m
Wed 6/98:40 am -
2 stops19h 50m
Deal found 11/4![Delta logo]()
$1,183
Last-minute flights from Porto Alegre to SeattleDiscover last-minute flight deals from Porto Alegre to Seattle. Data last updated November 9, 2026 and is based on user searches.
Discover last-minute flight deals from Porto Alegre to Seattle. Data last updated November 9, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:30 am -
2 stops21h 35m
Sat 2/2010:35 pm -
2 stops27h 05m
Deal found 11/8![Delta logo]()
$1,157
This LATAM Airlines deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/35:15 am -
2 stops21h 27m
Sat 2/208:00 am -
2 stops21h 00m
Deal found 11/6![LATAM Airlines logo]()
$1,170
This Copa Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/231:35 am -
2 stops26h 43m
Fri 1/87:28 pm -
2 stops24h 07m
Deal found 11/5![Copa Airlines logo]()
$1,342
This LATAM Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/235:40 pm -
2 stops27h 08m
Tue 1/511:10 pm -
2 stops32h 05m
Deal found 11/5![LATAM Airlines logo]()
$1,385
This LATAM Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/235:40 pm -
2 stops27h 08m
Wed 1/611:10 pm -
2 stops31h 50m
Deal found 11/5![LATAM Airlines logo]()
$1,390
This VIAZA deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure VIAZA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/245:20 am -
3 stops23h 35m
Fri 1/88:00 am -
2 stops27h 50m
Deal found 11/5![LATAM Airlines logo]()
$1,113
This LATAM Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/251:05 pm -
2 stops30h 14m
Tue 1/511:10 pm -
2 stops32h 05m
Deal found 11/5![LATAM Airlines logo]()
$1,209
This LATAM Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/251:05 pm -
2 stops30h 14m
Wed 1/611:10 pm -
2 stops31h 50m
Deal found 11/5![LATAM Airlines logo]()
$1,214
This LATAM Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2512:40 pm -
2 stops30h 39m
Sun 1/1011:45 am -
2 stops24h 05m
Deal found 11/5![LATAM Airlines logo]()
$1,220
One-way flights from Porto Alegre to SeattleSearch for one-way flight options from Porto Alegre to Seattle. Find affordable one-way fares based on user searches. Data last updated November 9, 2026.
Search for one-way flight options from Porto Alegre to Seattle. Find affordable one-way fares based on user searches. Data last updated November 9, 2026.
This Flightnetwork deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/155:10 pm -
3 stops25h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Air Canada logo]()
$749
This American Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/16:30 pm -
2 stops32h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![American Airlines logo]()
$756
This Flightnetwork deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/16:30 pm -
3 stops44h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Multiple Airlines logo]()
$785
This Trip.com deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/141:40 am -
2 stops22h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Multiple Airlines logo]()
$799
Find flight deals from Porto Alegre to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Porto Alegre (POA) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,065 (VIAZA) |
One-way from | $749 (Flightnetwork) |
Cheapflights Fare Finder
Customize your flight search to find flights from Porto Alegre to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated November 9, 2026.
Use the filters below to find and compare flights from Porto Alegre to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Porto AlegreSeattle
POA Porto Alegre Salgado Filho - SEA Seattle/Tacoma Intl
POASEA
Porto Alegre Salgado Filho
Mon 3/15
5:10 pm-2:35 pm
3 stops25h 25m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-5:00 am
Nonstop0h 00m
$749
Porto AlegreSeattle
POA Porto Alegre Salgado Filho - SEA Seattle/Tacoma Intl
POASEA
Porto Alegre Salgado Filho
Thu 4/1
6:30 pm-10:34 pm
2 stops32h 04m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-5:00 am
Nonstop0h 00m
$756
Porto AlegreSeattle
POA Porto Alegre Salgado Filho - SEA Seattle/Tacoma Intl
POASEA
Porto Alegre Salgado Filho
Thu 4/1
6:30 pm-10:30 am
3 stops44h 00m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-5:00 am
Nonstop0h 00m
$785
Porto AlegreSeattle
POA Porto Alegre Salgado Filho - SEA Seattle/Tacoma Intl
POASEA
Porto Alegre Salgado Filho
Fri 4/2
6:30 pm-10:30 am
3 stops44h 00m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-5:00 am
Nonstop0h 00m
$785
Quickest round-trip
Porto AlegreSeattle
POA Porto Alegre Salgado Filho - SEA Seattle/Tacoma Intl
POASEA
Porto Alegre Salgado Filho
Sun 3/14
1:40 am-8:33 pm
2 stops22h 53m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-5:00 am
Nonstop0h 00m
$799
Porto AlegreSeattle
POA Porto Alegre Salgado Filho - SEA Seattle/Tacoma Intl
POASEA
Porto Alegre Salgado Filho
Sun 2/7
6:05 am-11:30 am
2 stops34h 25m
Seattle/Tacoma Intl
Wed 2/24
10:23 am-2:35 pm
2 stops23h 12m
$1,135
Porto AlegreSeattle
POA Porto Alegre Salgado Filho - SEA Seattle/Tacoma Intl
POASEA
Porto Alegre Salgado Filho
Tue 2/9
5:45 am-11:30 am
2 stops34h 45m
Seattle/Tacoma Intl
Wed 2/24
10:23 am-2:35 pm
2 stops23h 12m
$1,135
Porto AlegreSeattle
POA Porto Alegre Salgado Filho - SEA Seattle/Tacoma Intl
POASEA
Porto Alegre Salgado Filho
Thu 12/3
7:30 am-12:05 am
2 stops21h 35m
Seattle/Tacoma Intl
Sat 2/20
10:35 pm-6:40 am
2 stops27h 05m
$1,158
Porto AlegreSeattle
POA Porto Alegre Salgado Filho - SEA Seattle/Tacoma Intl
POASEA
Porto Alegre Salgado Filho
Thu 5/6
7:30 am-1:58 pm
2 stops34h 28m
Seattle/Tacoma Intl
Thu 6/10
9:25 pm-6:40 am
2 stops29h 15m
$1,177
Porto AlegreSeattle
POA Porto Alegre Salgado Filho - SEA Seattle/Tacoma Intl
POASEA
Porto Alegre Salgado Filho
Thu 2/25
7:30 am-10:15 am
2 stops31h 45m
Seattle/Tacoma Intl
Mon 3/1
6:10 am-6:40 am
2 stops19h 30m
$1,181
Showing 1-10 of 11 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on Porto Alegre-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Porto Alegre-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Porto Alegre-Seattle flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Porto Alegre-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Porto Alegre-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Porto Alegre to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Porto Alegre with our price prediction graph.
POA-SEA
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Related info for your journey
Find useful and relevant information for your journey from Porto Alegre to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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